Instant clearing electronic lock system after key-following cipher use and realizing method therefor

ABSTRACT

A kind of method for electronic lock system making the key-following password tidy up immediately after use, in which: a. establish human characteristic sensor and temporary password memory on the main body of the electronic key and data transmission unit of the lock password, lock controlling unit and user&#39;s database on the lock main body; b. firstly, human characteristic sensor gathers every user&#39;s human characteristic information that can be changed into corresponding authentification code in the producing unit for the password and deposited into the temporary password memory temporarily, meanwhile transported into data transmission unit of the lock password through data transmission unit of the key password; secondly, the password is deposited into the user&#39;s database after being registered and confirmed; c. when the human characteristic sensor leaves the human body or the authentification code is conveyed successfully, the temporary password memory is tidied up.

BACKGROUND OF THE PRESENT INVENTION

1. Field of Invention

This present inventing relates to an electronic controlled lock, andmore particularly to an instant clearing electronic lock system afterkey-following cipher is used and realizing method.

2. Description of Related Arts

In current technique most electronic locks are using different kinds ofIC cards to unlock. Recently some technology uses human characteristicinformation gathered from the user to unlock electronic locks. Forexample, the Chinese patent number 03147915 disclosed a method named“Electronic Lock Device” which can open an electronic lock by comparinguser's finger print. This technique improved the operability and reducedcost. This electronic lock device comprises finger print input unit andcomparison unit, the comparison unit compares the inputted finger printwith the registered finger print to verify the user's identification, ifthe user is identified, the lock will be opened. The disadvantage ofthis lock is that every lock needs a finger print sensor. If there aremultiple locks are used by the user, many finger print sensors areneeded to be installed on the locks, it is wasting. Moreover, currenttechnique is using nonvolatile cipher key, and is not safe.

Another example, the Chinese patent number 00133249 disclosed a methodnamed “A smart lock which can self set key and allow one key apply tomultiple locks with key and the setup tool”, the lock of this inventiondoesn't need battery, the power for opening the lock is supplied by thebattery from the key. The cipher in the key is stored after setting, ifthe key is lost, the key can be used by other person.

SUMMARY OF THE PRESENT INVENTION

An object of the present invention is to provide a method and anelectronic lock system which can avoid the disadvantage of currenttechnology by instant clearing electronic lock system afterkey-following cipher is used. In this present invention, the keycomprises a human characteristic sensor. Every time when the key is usedto open a lock, it will collect user's physical feature information bythe sensor, and generate a cipher by a determined encryption algorithm.A same user's same physical body will generate a same cipher. Thiscipher is then sent to the lock and is compared with the record in thelock's database. If an authorized user is identified, the lock will beopened, otherwise, the lock will not be opened and warning message willbe delivered.

In order to accomplish above object, the present invention provides amethod of instant clearing the memory of the electronic lock after thecipher key is used, based on a system which comprises electronic keymain body, lock main body, and lock operation element, comprising thesteps:

-   -   a. providing a human characteristic sensor, a key microprocessor        unit, a cipher generating unit, a cipher temporary storage unit,        and a key cipher data transmission unit on the electronic key        main body;    -   b. providing a lock cipher data transmission unit, a lock        controlling unit, and a user database on the lock main body;    -   c. collecting every user's human characteristic information by        the human characteristic sensor first, generating according        cipher by the cipher generating unit, storing the cipher in the        cipher temporary storage unit temporarily, transmitting the        cipher data to the lock cipher data transmission unit by the key        cipher data transmission unit, verifying the cipher's        registration, saving in the user database, clearing the        temporary cipher storage unit after the human body is        disconnected from the human characteristic sensor;    -   d. collecting user's human characteristic information when the        registered user is using the electronic key to open the lock,        generating the cipher again by the cipher generating unit,        storing the cipher temporarily in the cipher temporary storage        unit, transmitting the cipher data to the lock cipher data        transmission unit through the key cipher data transmission unit,        checking the cipher data on the user database by the lock        controlling unit to confirm if there is a same record; and    -   e. sending command to the lock operation element to open the        lock if a same record is found in the database by the lock        controlling unit, or delivering a warning message and saving an        error message by the lock controlling unit if no same record is        found.

The cipher generating unit comprises a main cipher arithmetic unit andan additional cipher arithmetic unit, to generate the cipher, the step calso comprises:

-   -   a. processing human characteristic information to generate        multiple bytes main cipher by the main cipher arithmetic unit;    -   b. recalling additional cipher from the additional cipher        arithmetic unit by the key microprocessor unit, combining the        main cipher and the additional cipher, storing the combined        cipher in cipher temporary storage unit; and    -   c. checking if the physical body is disconnected with the human        characteristic sensor or the cipher is transmitted successfully        according to the process of operation by the key microprocessor        unit, clearing the cipher temporary storage unit.

The electronic key main body also comprises a key keypad, and a keydisplay unit.

Controlled by the key microprocessor unit, the key keypad collects theadditional cipher, stores it in the additional cipher arithmetic unitnonvolatilely. According to the application, the additional cipher canbe skipped. The key display unit is controlled by the key ciphermicroprocessor unit to display the operational information.

The lock main body also comprises a lock keypad, a lock display unit,and a network communication interface unit. The lock keypad iscontrolled by the lock microprocessor of the lock controlling unit toinput operation command; the lock display unit is controlled by the lockcontrolling unit to display operation results and warning message; thenetwork communication interface unit is controlled by the lockcontrolling unit to accept command from the network and exchange datawith the network.

The transmission of the cipher data from the key cipher datatransmission unit to the lock cipher data transmission unit is realizedby the contact between the contact set installed on the electronic keymain body and the contact set installed on the electronic lock mainbody.

The transmission of the cipher data from the key cipher datatransmission unit to the lock cipher data transmission unit is realizedby wireless communication between the transceiver installed on theelectronic key main body and the transceiver installed on the electroniclock main body.

The human characteristic sensor includes finger print sensor, bodytemperature sensor, sweat sensor, iris sensor, or sensors combination.

In order to accomplish above object, the present invention provides anelectronic lock system which clears cipher key instantly after thecipher key is used. The electronic lock system comprises an electronickey main body, a lock main body, and a lock operation element. Theelectronic key main body also comprises a human characteristic sensor, akey microprocessor unit, a cipher generating unit, a cipher temporarystorage unit, a cipher data transmission unit, and a key power; thehuman characteristic sensor is electrically connected with the keymicroprocessor unit and the cipher generating unit, the cipher temporarystorage unit is electrically connected with the cipher generating unitand the key cipher data transmission unit.

The lock main body comprises a lock cipher data transmission unit, alock controlling unit, and a user database; the lock controlling unit iselectrically connected with the lock cipher data transmission unit, theuser database, and the lock operation element.

The electronic key main body also comprises a key keypad, and a keydisplay unit. The key keypad is electrically connected with the keymicroprocessor unit, the key display unit is electrically connected withthe key microprocessor unit.

The lock main body also comprises a lock keypad, a lock display unit,and a network communication interface unit. The lock keypad iselectrically connected with the lock microprocessor of the lockcontrolling unit; the lock display unit is electrically connected withthe lock controlling unit. The network communication interface unitconnects the electronic lock into a centralized controlling networkwhich is controlled by a central microcontroller. The centermicrocontroller can establish LAN with other micro computer, and form alarger electronic lock network system.

The electronic key main body comprises a key contact set which iselectrically connected with the key cipher data transmission unit, andthe lock main body comprises a lock contact set which is electricallyconnected with the lock cipher data transmission unit.

The electronic key main body comprises a key transceiver which iselectrically connected with the key cipher data transmission unit, andthe lock main body comprises a lock transceiver which is electricallyconnected with the lock cipher data transmission unit.

The human characteristic sensor includes a finger print sensor, a bodytemperature sensor, or a sweat sensor.

Compared with current technology, in the present invention, theelectronic key provides a human characteristic sensor which collectsdifferent physical information from different users, and generatesdifferent cipher data. The cipher data is registered in the lockdatabase beforehand. Every time when the lock is being unlocked, thecipher data on the key will be transmitted to the lock and compared withthe lock database. If there is a same record, the lock will be opened,other wise a warning message will be delivered. Every time the cipherdata generated in the electronic key will be cleared automatically whenthe physical body is disconnected with the electronic key, this willavoid security disaster if the key is lost. Further more, one key can beused for multiple users and multiple locks which can save the systemcost.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram of the instant clearing electronic lock systemafter key-cipher use and realizing method;

FIG. 2 is a block diagram of the electronic key cipher generating unitof this invention;

FIG. 3 is a circuit diagram of the electronic key of this invention;

FIG. 4 is a block diagram of the lock of this invention;

FIG. 5 is a circuit diagram of the lock of this invention;

FIG. 6 is a circuit diagram of the lock network communication interfaceunit of this invention;

FIG. 7 is a circuit diagram of the lock operation unit of thisinvention;

FIG. 8 is a flow diagram of the method of authorizing a user of thisinvention;

FIG. 9 illustrates the electronic lock based control system of thisinvention;

FIG. 10 illustrates the contact transmission of the cipher data of thisinvention;

FIG. 11 illustrates the wireless transmission of the cipher data of thisinvention;

FIG. 12 is the flow diagram of the method of cancel a user of thisinvention;

FIG. 13 illustrates the application in car remote control of thisinvention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

FIGS. 1 and 4 illustrate a method of instant clearing electronic lockafter key-cipher use. Based on a system which comprises an electronickey main body 20, a lock main body 80, a lock operation unit 120, apreferred embodiment of the method comprises:

-   -   a. providing a human characteristic sensor 21, a key micro        processing unit 21, a cipher generating unit 30, a cipher        temporary storage unit 34, and a key cipher data transmitting        unit 40 on the electronic key main body 20;    -   b. providing a lock cipher data transmission unit 90, a lock        controlling unit 100, a user database 110, and a lock operation        element 120 on the lock main body 80;    -   c. collecting every user's human characteristic information by        the human characteristic sensor 21 first, generating according        cipher by the cipher generating unit 30, storing the cipher in        the cipher temporary storage unit 34 temporarily, transmitting        the cipher data to the lock cipher data transmission unit 90 by        the key cipher data transmission unit 40, verifying the cipher's        registration, saving in the user database 110, clearing the        temporary cipher storage unit 34 after the human body is        disconnected from the human characteristic sensor 21;    -   d. collecting user's human characteristic information by the        human characteristic sensor 21 when the registered user is using        the electronic key main body 20 to open the lock, generating the        cipher again by the cipher generating unit 30, storing the        cipher temporarily in the cipher temporary storage unit 34,        transmitting the cipher data to the lock cipher data        transmission unit 90 through the key cipher data transmission        unit 40, checking the cipher data on the user database 110 by        the lock controlling unit 100 on the lock main body 80 to        confirm if there is a same record;    -   e. sending command to the lock operation element 120 to open the        lock if a same record is found in the database by the lock        controlling unit 100, or delivering a warning message and saving        an error message by the lock controlling unit 100 if no same        record is found.

As illustrated in FIG. 2, the cipher generating unit 30 comprises a maincipher arithmetic unit 31 and an additional cipher arithmetic unit 33,to generate the cipher, the step c also comprises:

-   -   a. processing human characteristic information to generate 4˜6        bytes main cipher by the main cipher arithmetic unit 31;    -   b. recalling additional cipher from the additional cipher        arithmetic unit 33 by the key microprocessor unit 26, combining        the main cipher and the additional cipher, storing the combined        cipher in cipher temporary storage unit 34;    -   c. checking the physical body is disconnected with the human        characteristic sensor 21 or the cipher is transmitted        successfully according to the process of operation by the key        microprocessor unit 26, clearing the cipher temporary storage        unit 34.

As illustrated in FIGS. 1 and 3, the electronic key main body 20 alsocomprises a key keypad 22, and a key display unit 23. The key keypad 22is controlled by the key microprocessor unit 26 to collect theadditional cipher, stores it in the additional cipher arithmetic unit33. The key display unit 23 is controlled by the key ciphermicroprocessor unit 26 to display the operational information.

As illustrated in FIGS. 2 and 3, in an preferred embodiment, theadditional cipher arithmetic unit 33 comprises a EEPROM chipset U2, thefunction of the main cipher arithmetic unit 31 is performed by themicroprocessor U1.

As illustrated in FIGS. 4 and 5, the lock main body 80 also comprises alock keypad 81, a lock display unit 82, and a network communicationinterface unit 83. The lock keypad 81 is controlled by the lockmicroprocessor U21 of the lock controlling unit 100 to input operationcommand; the lock display unit 82 is controlled by the lock controllingunit 100 to display operation results and warning message, in apreferred embodiment, the LCD driver U27 is EA V-D2004 OAR. Asillustrated in FIG. 6, the network communication interface unit 83 iscontrolled by the lock controlling unit 100, the TXD and RXD serialcommunication port in the lock microprocessor U21 is connected with thenetwork communication interface unit 83. In a preferred embodiment, itis using RS485 communication. In alternative embodiments, CAN bus orother bus technique can also be used. After establishing the networkcontrol, very lock accepts the command from the network system, andtransmits its product data to the main computer of the control network.

A backup battery and external power 85 is electrically connected withthe lock main body 80 through an interface. When the external power 85is out of order, the backup battery will automatically supply power.

An external feed contact 86 is a power contact installed on the lockmain body 80, in unexpected situation, the lock can be opened using thefeed current from the key.

FIG. 7 is a flow diagram of a lock operation unit of a preferredembodiment. M1 is a two-way DC motor. The OPEN DOOR and CLOSE DOORsignal input is directly connected with two inputs of the P1 port on thelock microprocessor U21, when one input is high level an another inputis low level, the DC motor M1 rotates in one direction, when one inputis low level and another input is high level, the DC motor M1 rotates inanother direction, when the two inputs are the same level, the DC motorM1 stops. The operation is controlled by the software embedded in thelock microprocessor U21. In the lock main body 80 there are multipleposition switches connected with the input of P1 port of the lockmicroprocessor U21, the lock microprocessor U21 check the status of theswitches to decide the DC motor M1's operation.

Of course, the system can select to electrically open the lock, orelectrically open the pins and exert force through the key to open thelock. The mechanical structure of the lock is using well knowntechnology.

As illustrated in FIG. 10, the transmission of the cipher data from thekey cipher data transmission unit 40 to the lock cipher datatransmission unit 90 is realized by the key contact set 28 on the keymain body 20 and the lock contact set 88 on the lock main body 80.

As illustrated in FIG. 11, the transmission of the cipher data from thekey cipher data transmission unit 40 to the lock cipher datatransmission unit 90 is realized by the key transceiver 29 on the keymain body 20 and the lock transceiver 89 on the lock main body 80.

In the preferred embodiment, the lock is using contact method with a keyhole. The key hole includes different shapes, for example, square,triangle, rectangular, or like. In an alternative embodiment, the lockcan also use non-contact method without key hole. Both contact andnon-contact data transmission can use currently well known technology torealize, such as IC card reading method, infrared transmission,Maxim-Dallas' i-Button single bus contact method or like.

In the preferred embodiment, the human characteristic sensor 21 is afinger print sensor. In an alternative embodiment, the humancharacteristic sensor 21 can be a body temperature sensor or a sweatsensor.

FIG. 8 illustrates the cipher authorization function and authorizedcipher management function of the present invention. The cipher storageis using encrypt storage method, so the decryption algorithm must beutilized to recall the right cipher or recover the right cipher fromrecalled data. The cipher has three levels: super level (first level),manager level (second level), and user level (third level). The lockdoesn't have any cipher initially. The first cipher used becomes thesuper cipher automatically. When setup other cipher which is not used ingroup, besides applying the super cipher, it also needs to apply thenon-contact switches, buttons, switches combination, buttonscombination, or two combinations together under the locking statuse.

-   -   The super cipher can authorize or cancel manager cipher and user        cipher, can open locks and receive information form locks. If        necessary, super cipher can authorize multiple equal super        ciphers.    -   The manager cipher can authorize or cancel user cipher, can open        locks and receive information form locks, but can't authorize or        cancel super cipher and manager cipher.    -   The user cipher can only open locks and receive information form        locks.

The lock doesn't need manager cipher if it is not connected with anetwork. Super cipher and manager cipher can access the list ofauthorized users. No operation can check the user cipher.

FIG. 12 illustrates the flow diagram of the method of cancel a user.

An alternative embodiment of the present invention is illustrated.

Referring to FIGS. 1 and 4, an electronic lock system which clearscipher key instantly after the cipher key is used is provided. Theelectronic lock system comprises an electronic key main body 20, a lockmain body 80, and a lock operation element 120. The electronic key mainbody also comprises a human characteristic sensor 21, a keymicroprocessor unit 26, a cipher generating unit 30, a cipher temporarystorage unit 34, a cipher data transmission unit 40, and a key power 50;the human characteristic sensor 21 is electrically connected with thekey microprocessor unit 26 and the cipher generating unit 30, the ciphertemporary storage unit 34 is electrically connected with the ciphergenerating unit 30 and the key cipher data transmission unit 40.

Referring to FIGS. 4 and 5, the lock main body 80 comprises a lockcipher data transmission unit 90, a lock controlling unit 100, and auser database 110; the lock controlling unit 100 is electricallyconnected with the lock cipher data transmission unit 90, the userdatabase 110, and a lock operation element 120. In a preferredembodiment, the lock microprocessor U21 is ATMEL89C52.

The electronic key main body 20 also comprises a key keypad 22, and akey display unit 23. The key keypad 22 is electrically connected withthe key microprocessor unit 26; the key display unit 23 is alsoelectrically connected with the key microprocessor unit 26.

Referring to FIG. 5, the lock main body 80 also comprises a lock keypad81, a lock display unit 82, and a network communication interface unit83. The lock keypad 81 is electrically connected with the lockmicroprocessor of the lock controlling unit 100; the lock display unit82 is electrically connected with the lock controlling unit 100. In thepreferred embodiment, the lock keypad 81 comprises digital circuitchipset U25 and U26, the key command is transmitted to the U21 throughthe data bus AD0˜AD7.

Referring to FIG. 10, in the preferred embodiment, the electronic keymain body 20 comprises a key contact set 28 which is electricallyconnected with the key cipher data transmission unit 40, and the lockmain body 80 comprises a lock contact set 88 which is electricallyconnected with the lock cipher data transmission unit 90.

Referring to FIG. 11, in an alternative embodiment, the electronic keymain body 20 comprises a key transceiver 29 which is electricallyconnected with the key cipher data transmission unit 40, and the lockmain body 80 comprises a lock transceiver 89 which is electricallyconnected with the lock cipher data transmission unit 90.

Referring to FIG. 6, the network communication interface unit 83 iscontrolled by the lock controlling unit 100, the TXD and RXD serialcommunication port in the lock microprocessor U21 is connected with thenetwork communication interface unit 83. In a preferred embodiment, itis using RS485 communication. In alternative embodiments, CAN bus orother bus technique can also be used. After establishing the networkcontrol, very lock accepts the command from the network system, andtransmits its product data to the main computer of the control network.

Referring to FIG. 9, through the network interface, the system can bemanaged by multiple terminals; it can also be remote managed throughInternet. Well known technology in this field can be used to connect theserver or integrated terminal with the lock, such as different kinds ofbus and network technology based on twisted-pair cable (for example,RS485). This kind of system is generally used in group management suchas in hotel. Resident house can also use it if necessary, for example,used in central management and alarm of resident door locks andfurniture locks.

In the preferred embodiment, the human characteristic sensor 21 is afinger print sensor. In other alternative embodiments, a bodytemperature sensor, or a sweat sensor can also be used.

The lock main body 80 can comprise a warning device. In an alternativeembodiment, the lock main body 80 doesn't comprise a warning device,warning message can be delivered by communication channel. In oneembodiment, the system can automatically call the property owner, thebuilding/distribute manager or security department through an interface.

Referring to FIG. 13, another alternative embodiment of the presentinvention is a finger print electronic key utilizing a mobile phone 200.The additional cipher can be inputted but the key buttons on the mobilephone, the user puts the fingers for authorization on the finger printexam area of the human characteristic sensor 21, place the datatransmitting port close to the receiving port of the lock cipher datatransmission unit 89 on the lock main body 80, and press sending key.Then the cipher data is sent to be verified, at the same time the systemclears the cipher data and waits for the next operation. The system canalso provide client 24 hours anti-theft monitoring through specializednetwork, for example, monitoring cars and authorizing to remote shutdown the circuit, gas supply of the alarmed car, locating the car withthe positioning system.

The first level user can check the user's status by plugging in the key,inputting the cipher and pressing view button.

Because the electronic key doesn't have any cipher, if it is lost, thereis no other damage except the cost of the device. Any substitutive key(the key and the shape of the lock hole should be matched in electricalmechanical opening) of the present invention, for example borrowed fromneighbor or security department, can open the target lock. The lenderdoesn't need to worry about releasing his own cipher, same as theborrower. As a form of service, the building manager, securitydepartment, and other department can all provide public cipher keyservice.

Practice shows, in the present invention, the electronic key comprises ahuman characteristic sensor, collects different physical featureinformation from different user, and generates different cipher data.This cipher data is registered in the database of the lock beforehand.Thereafter when the lock needs to be open, the cipher data collected bythe key will be transmitted to the lock and compared with the record inthe database. If the same data is found, the lock will be open, if not,warning message will be delivered. The cipher data generated in theelectronic key will be automatically cleared when the physical body isdisconnected from the electronic key. This will avoid further securitydamage when the key is lost. More over, a key can be shared by multiplepersons and for multiple purposes; this reduces the system cost, and ishelpful to establish a large arrange electronic lock/access controlmonitoring system, develop more functions.

One skilled in the art will understand that the embodiment of thepresent invention as shown in the drawings and described above isexemplary only and not intended to be limiting.

It will thus be seen that the objects of the present invention have beenfully and effectively accomplished. It embodiments have been shown anddescribed for the purposes of illustrating the functional and structuralprinciples of the present invention and is subject to change withoutdeparture from such principles. Therefore, this invention includes allmodifications encompassed within the spirit and scope of the followingclaims.

1. A method of instant clearing electronic lock after key-cipher usebased on a system comprising an electronic key main body, a lock mainbody, a lock operation unit, wherein the method comprises the steps of:a. providing a human characteristic sensor, a key micro processing unit,a cipher generating unit, a cipher temporary storage unit, and a keycipher data transmitting unit on said electronic key main body; b.providing a lock cipher data transmission unit, a lock controlling unit,and a user database on said lock main body; c. collecting every user'shuman characteristic information by said human characteristic sensorfirst, generating according cipher by said cipher generating unit,storing said cipher in said cipher temporary storage unit temporarily,transmitting said cipher data to said lock cipher data transmission unitby said key cipher data transmission unit, verifying said cipher'sregistration, saving in said user database, clearing said temporarycipher storage unit after the human body is disconnected from said humancharacteristic sensor; d. collecting user's human characteristicinformation by said human characteristic sensor when the registered useris using said electronic key main body to open the lock, generating saidcipher again by said cipher generating unit, storing said ciphertemporarily in said cipher temporary storage unit, transmitting saidcipher data to said lock cipher data transmission unit through said keycipher data transmission unit, checking said cipher data on said userdatabase by said lock controlling unit on said lock main body to confirmif there is a same record; and e. sending command to said lock operationelement to open the lock if a same record is found in said database bysaid lock controlling unit, or delivering a warning message and savingan error message by said lock controlling unit if no same record isfound.
 2. The method, as recited in claim 1, wherein said ciphergenerating unit comprises a main cipher arithmetic unit and anadditional cipher arithmetic unit, wherein the step c also comprises thesteps of: a. processing human characteristic information to generatemultiple bytes main cipher by said main cipher arithmetic unit; b.recalling additional cipher from said additional cipher arithmetic unitby said key microprocessor unit, combining said main cipher and saidadditional cipher, storing said combined cipher in said cipher temporarystorage unit; c. checking if the physical body is disconnected with saidhuman characteristic sensor according to the process of operation bysaid key microprocessor unit, deciding the time delay to clear saidcipher temporary storage unit.
 3. The method, as recited in claim 1,wherein said electronic key main body also comprises a key keypad whichis controlled by said key microprocessor unit to collect said additionalcipher, store it in said additional cipher arithmetic unit said, and akey display unit which is controlled by said key cipher microprocessorunit to display the operational information.
 4. The method, as recitedin claim 1, wherein said lock main body also comprises a lock keypadwhich is controlled by a lock microprocessor of said lock controllingunit to input operation command, a lock display unit which is controlledby said lock controlling unit to display operation results and warningmessage, and a network communication interface unit which is controlledby said lock controlling unit to accept network system command andexchange data with the network.
 5. The method, as recited in claim 1,wherein the transmission of said cipher data from said key cipher datatransmission unit to said lock cipher data transmission unit 90 isrealized by a key contact set on said key main body and a lock contactset on said lock main body.
 6. The method, as recited in claim 1,wherein the transmission of said cipher data from said key cipher datatransmission unit to said lock cipher data transmission unit 90 isrealized by a key transceiver on said key main body and a locktransceiver on said lock main body.
 7. The method, as recited in claim1, wherein said human characteristic sensor includes a finger printsensor, a body temperature sensor, a sweat sensor, or an iris sensor. 8.An electronic lock system which clears cipher key instantly after thecipher key is used, comprising: an electronic key main body; a lock mainbody; and a lock operation element, wherein said electronic key mainbody also comprises a human characteristic sensor, a key microprocessorunit, a cipher generating unit, a cipher temporary storage unit, acipher data transmission unit, and a key power, wherein said humancharacteristic sensor is electrically connected with said keymicroprocessor unit and said cipher generating unit, said ciphertemporary storage unit is electrically connected with said ciphergenerating unit and said key cipher data transmission unit, wherein saidlock main body comprises a lock cipher data transmission unit, a lockcontrolling unit, and a user database, wherein said lock controllingunit is electrically connected with said lock cipher data transmissionunit, said user database, and said lock operation element.
 9. Theelectronic lock system which clears cipher key instantly after thecipher key is used of claim 8, wherein said electronic key main bodyalso comprises a key keypad, and a key display unit, wherein said keykeypad is electrically connected with said key microprocessor unit,wherein said key display unit is electrically connected with said keymicroprocessor unit.
 10. The electronic lock system which clears cipherkey instantly after the cipher key is used of claim 8, wherein said lockmain body also comprises a lock keypad, a lock display unit, and anetwork communication interface unit, wherein said lock keypad iselectrically connected with a lock microprocessor of said lockcontrolling unit; wherein said lock display unit is electricallyconnected with said lock controlling unit, wherein said networkcommunication interface unit is electrically connected with said lockcontrolling unit.
 11. The electronic lock system which clears cipher keyinstantly after the cipher key is used of claim 8, wherein saidelectronic key main body comprises a key contact set which iselectrically connected with said key cipher data transmission unit, andsaid lock main body comprises a lock contact set which is electricallyconnected with said lock cipher data transmission unit.
 12. Theelectronic lock system which clears cipher key instantly after thecipher key is used of claim 8, wherein said electronic key main bodycomprises a key transceiver which is electrically connected with saidkey cipher data transmission unit, and said lock main body comprises alock transceiver which is electrically connected with said lock cipherdata transmission unit.
 13. The electronic lock system which clearscipher key instantly after the cipher key is used of claim 8, whereinsaid human characteristic sensor includes a finger print sensor, a bodytemperature sensor, a sweat sensor, an iris sensor, or a sensorscombination.